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I G. COOPER 8v A.A.BRIGHAM.

SPINDLE FOR WINDING MACHINES.

-No.'547,770. Patented Oct. 15, 1895.

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NAM. PHOTO-UTHQWASHINGWN. D C.

UNITED STATE-s PATENT OFFICE.

GEORGE COOPER, OF PHILADELPHIA, PENNSYLVANIA, AND ARTHUR A. BRIGHAM, OFWESTON, MASSACHUSETTS; SAID COOPER ASSIGNOR TO SAID BRIGHAM.

SPINDLE FOR WINDING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 547,770, dated October15, 1895. Application filed September 2, 1893. I Serial No. 484,643- (Nomodel.)

To all whom it may concern.-

Be it known that we, GEORGE COOPER, residing at Philadelphia, in thecounty of Philadelphia and State of Pennsylvania, and AR- THUR A.BRIGHAM, residing at Weston, in the county of Middlesex and State ofMassachusetts, citizens of the United States, have invented a new anduseful Improvement in Spindles for Winding-Machines. of which thefollowing is a specification, reference being bad to the accompanyingdrawings.

Our invention relates to conical spindles for winding-machines,particularly to means or a device combined with the spindle for securingthereon the shell or cone upon which the yarn or thread is wound.

The invention consists of a spiral thread formed on the spindle,substantially as hereinafter described, and specifically pointed out inthe claim.

In the drawings, Figure 1 shows a spindle embodying our invention whenthe spiral thread is formed on the small part thereof. Fig. 2 is an endview of the spindle. Fig. 3 shows a spindle having the spiral thread onthe greater part thereof. Fig. 4 shows a shell or cone adapted to enterupon the spindle shown in Fig. 3.

When the shell or cone upon which the yarn or thread is to be wound hasa smooth or even interior surface, it is best, in order to carry out ourinvention, to form a fine spiral thread on a metallic portion of thespindle, as shown in Fig. 1. The spindle A, having the two usualextensions a to enter the ordinary bearings therefor, we form, as to thegreater part b of the conical portion thereof, of wood or other suitablematerial; but the smaller part, and preferably that end 0 of smallerdiameter, we form of metal. Upon this end portion 0 we cut or form aspiral thread d. At the larger end of the spindle, arms or radialpr'ojections e are constructed of suitable shape to be readily seized bythe fingers.

In operation the shell or cone, usually made of pasteboard, is thrustupon the conical spindle, and then, by slightly pressing the spindleinto the cone and giving the spindle a revolution or part of arevolution by means of the arms or radial projections 6 while the coneis held stationary, the thread d is screwed suffioiently into thematerial of the cone to cause the latter to be held so securely on thespindle as not to become loose thereon when placed in the machine andduring the process of winding.

For certain kinds of winding it is desirable to corrugate or groove theexterior of the shell or cone. Such grooves may be spiral and so formedas to make a spiral thread on the interior surface of the cone B, asillustrated in Fig. 4. For such cones we form a spiral threadfon thegreater portion of the spindle, as shown in Fig. 3. This threadcorresponds to that on the interior surface of the cone. Thus, byrevolving the spindle in the suitable direction while in the cone, whichis held stationary, the spindle will be screwed into the cone, so thatthe latter will be held securely thereon.

Screwing the spindle into the cone, as specified, is a very simpleoperation, as, also, the reverse movement to remove the cone from thespindle, while the means or device can be very easily made and is ofslight cost.

We claim as our invention- A conical spindle for a winding machine,provided with a spiral thread on the exterior surface thereof, and witharms or projections at the end of the spindle to facilitate screwing thespindle into a shell or cone, said arms or projections not extendingradially beyond the periphery of the spindle, substantially as setforth.

GEORGE COOPER. ARTHUR A. BRIGHAM.

Witnesses as to the signature of George Cooper:

WILLIAM BUCKLEY, JAs. Woon.

Witnesses as to the signature of Arthur A.

Brigham:

ARTHUR L. JACOBS, EDWARD DUMMER.

